Thoughts

SELECT * FROM gallery2 WHERE topic_id="1586844" UNION SELECT * FROM gallery2 WHERE topic_id="1445410" UNION SELECT * FROM gallery2 WHERE topic_id="1441221" UNION SELECT * FROM gallery2 WHERE topic_id="1693087" UNION SELECT * FROM gallery2 WHERE topic_id="801283" UNION SELECT * FROM gallery2 WHERE topic_id="1075770" UNION SELECT * FROM gallery2 WHERE topic_id="830036" UNION SELECT * FROM gallery2 WHERE topic_id="621139" UNION SELECT * FROM gallery2 WHERE topic_id="1287893" UNION SELECT * FROM gallery2 WHERE topic_id="1157891" UNION SELECT * FROM gallery2 WHERE topic_id="905240" UNION SELECT * FROM gallery2 WHERE topic_id="977830" UNION SELECT * FROM gallery2 WHERE topic_id="755003" UNION SELECT * FROM gallery2 WHERE topic_id="633369" UNION SELECT * FROM gallery2 WHERE topic_id="882358" UNION SELECT * FROM gallery2 WHERE topic_id="1366236"